Kext Not Authentic; Omitting (Fix this and I'll have a Sony ML Hackintosh)

[Kuntakinte]

I have a Sony VPCEC390X Laptop Running Intel i5 & ATI 5xxx Graphics

After countless hours and some luck, I was able to create a bootable usb drive to make it to the mac installer on ML.
To get this far I needed to use a customized IOPCIFamily.kext
during the install, 3 minutes to the finish line, this kext is called on but I am guessing the permissions are wrong so it is flagged by the installer: IOPCIFamily.kext is not authentic; omitting
Then the installer tries to call on it and fails since it has been omitted...
So.
Is there a way to fix the permissions of this kext in terminal? Or am I just going about this all wrong.

PS
To get to the installer I run these:
-v -x -f -F USBLegacyOff=Yes pci=off GraphicsEnabler=No

Thanks in advance for any help or time.

Toby

 

[PokeHerOne]

If you can get to the installer, you can use Disk Utility to repair permissions. It's in the utilities menu up top. Have you tried that? There is a terminal command but I think Disk Util does the same thing (Can't remember the cmd)

 

[Kuntakinte]

Indeed I thought the same thing. I was unable to find much on this topic probably because I am not too sure this is where kexts are supposed to be edited but I went into terminal and did the following once I got into my Extensions directory:

chmod 775 IOPCIFamily.kext
chown root:wheel IOPCIFamily.kext

For each of those entries I got the following response from terminal respectively:

Unable to change file mode on IOPCIFamily.kext: Read Only File System
&
Read Only File System

I am so close I can taste it. Thanks for the suggestion.

 

[PokeHerOne]

As it's in the system folder, you may need to put "sudo" in front of your commands, but as you won't yet have an administrators password, I don't know if it will work. But it should work if you boot with -s to run single user (admin only) mode. You get terminal then and you can run your commands from there? Maybe...